NR110E Datasheet PDF - SANKEN
| Part Number | NR110E | |
| Description | Light Load High Efficiency Buck Regulator | |
| Manufacturers | SANKEN | |
| Logo |  |
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Light Load High Efficiency, 31V, Buck Regulator
NR110E series
General Descriptions
The NR110E series is buck regulator ICs integrates
High-side power MOSFET. The feature increasing
efficiency at light loads allows the device to be used in
the energy-saving applications. With the current mode
control, ultra low ESR capacitors such as ceramic
capacitors can be used. The ICs have protection functions
such as Over-Current Protection (OCP), Under-Voltage
Lockout (UVLO) and Thermal Shutdown (TSD). An
adjustable Soft-Start by an external capacitor prevents the
excessive inrush current at turn-on. The ICs integrate
phase compensation circuit which reduces the number of
external components and simplifies the design of
customer application. The ON/OFF pin (EN Pin) turns
the regulator on or off and helps to achieve low power
consumption requirements. The NR110E series is
available in an 8-pin SOIC package with an exposed
thermal pad on the back side.
Package
Exposed SOIC 8
Thermally enhanced 8-Pin package
Oct/23/2012
Features & Benefits
Current mode PWM control
Up to 94% Efficiency,
Up to 68% Efficiency at IO = 20mA Light Load
Adjustable “Over Current Protection（OCP）”
Current mode PWM control
Stable with low ESR ceramic output capacitors
Built-in protection function
Over Current Protection (OCP)
Thermal Shutdown (TSD)
Under Voltage Lockout (UVLO)
Built-in phase compensation
Adjustable Soft-Start with an external capacitor
Turn ON/OF the regulator function
Electrical Characteristics
Operating input range VIN = 6.5V～31V
Output adjustable VO= 0.8V～24V
2A / 4A output current
Fixed 350kHz frequency
Applications
LCD TV / Blu-Ray / Set top box
Home appliance
Green Electronic products
Other power supply
Typical Application Circuit
VIN
VIN_s
R1
C2 C1
GND
C9
R3
2
IN
7
EN
C10
1
BS 3
SW
NR111E
8
SS
GND
4
5
FB
ISET
6
L1
R5
R4
R7 R6
D1
Vo
Vo_s
C4 C5
GND
C1, C2: 10μF / 35V
C4, C5: 22μF / 16V
C9: 0.1μF
C10: 0.1μF
SW
R1: 1.7MΩ
L1: 10μH
R3: 22Ω
R4: 18kΩ, R5: 2.7kΩ (Vo=5.0V)
R6: 3.9kΩ
Rev.1.0
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp
1
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Light Load High Efficiency, 31V, Buck Regulator
NR110E series
NR111E Typical Performance Characteristics
Oct/23/2012
ONRu11tp4KuUtVsLtOartup
VO=5.0VV, oL=o3a.3dV=LC=4o7nusHtant Resistance
7.0
6.5
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
4.0 4.5 5.0 5.5 6.0 6.5 7.0 7.5 8.0 8.5 9.0 9.5 10.0
Input VoltaVgINe[VV]IN [V]
5.300
5.250
5.200
5.150
5.100
5.050
5.000
4.950
4.900
4.850
4.800
4.750
4.700
0.0
LoaNdR1R16eKgLuoaldaRteigo. n: VLoad
Vo=3.3V L=1V0uOH=5T.a0=V25℃
0.5 1.0 1.5 2.0 2.5
Output CIou[rAr]ent IO [A]
3.0
ShutdoNRw11n0KS,1u11pKp,1l1y4KC,11u5rKr,1e1n6Kt,1:17IKIN(off)
VEIQN=_o0fVf
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
-0.05
-0.10
0.0 5.0 10.0 15.0 20.0 25.0 30.0
Input VoltVaIgNe[VV] IN [V]
OverNCR1u10rKr/e1n11tKPOrCoPt.ection
Vo=5.V0VO=L5=.100VuH
6.00
5.50
5.00 VIN=12V
4.50 15V
4.00 18V
3.50 20V
3.00 24V
2.50
2.00
1.50 ISET=OPEN
1.00
ISET=GND
0.50
0.00
0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0
Output CuIorr[eAn]t IO [A]
500
480
460
440
420
400
380
360
340
320
300
280
260
240
220
200
0.0
SwitchiNnR1g10FKrfoecqs uency: fSW
Vo=3.3VV LO==150.u0HV
1.0 2.0 3.0 4.0
Output ICo u[Arr]ent IO [A]
5.0
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
0.0
SNuRp11p4Kly/1C15uKr,NrRe1n16tK:,NIRIN117K IQ
VO=5.0V
5.0 10.0 15.0 20.0 25.0
Output CuVrINre[Vn]t IO [A]
30.0
Rev.1.0
SANKEN ELECTRIC CO., LTD.
http://www.sanken-ele.co.jp
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for NR110E electronic component. |
| Information | Total 13 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ NR110E.PDF Datasheet ] | |
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